Hand-vise.



UNITED STATES :AT'ENT GFFICE.

ENOS ll. KREIDER, OF LANCASTER, PENNSYLVANIA;

HAN D-VISE.

SPECIFICATION forming part of Letters Patent No. 670,788, dated March26, 190i.

Application filed July 28.1899. Serial No. 725,357- (No model.

To all whom it may concern.-

Be it known that I, ENOS H. KREIDER, a citizen of the United States,residing at Lancaster, in the county of Lancaster and State ofPennsylvania, have invented certain new and useful Improvements inHand-Vises; and

. I do hereby declare the following to be a full,

clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to improvements in a hand or pin vise of thatclass in which the grip-jaws are pivoted at approved points between sideears or plates of a head-block provided with a stem or handle on which aconical sleeve movable up and down thereon is adapted to compress orexpand the forward or bite ends of said jaws.

The object of the invention is the construction of a hand or pin visethat may be operated with one hand, dispensing with the usualclamp-screw or compressing-ring, with increased pressure on the biteends of its jaws.

The elements of the invention will severally and at large appear in thefollowing description, and they will be separately and combinedly setforth in the claims.

The purposes of the invention are attained by the mechanism and devicesillustrated in the accompanying drawings, similar reference charactersdesignating like parts throughout the several views, in which Figure 1is a plan of a hand or pin vise embodying the elements of the invention,showing the jaws in closed or bite position. Fig. 2 is a plan of thesame vise with the jaws or bite open, the central portion of the topearplate removed, and the head-block in horizontal section. Fig. 3 is aside elevation of Fig. 2. Fig. 4: is an enlarged view similar to that ofFig. 3 with the near jaw removed and the right-hand end of the handle orstem broken away. Fig. 5 is a view from the right of the head-block asit appears in Fig. 4 with the jaws and sleeve removed, showing the jawpivot-pinsin place and the stem or handle at the point 00incross-section. Fig. 6 is a plan of the jaw removed from Fig. 4. Fig. 7is a longitudinal central vertical section of the sleeve detached fromFig. 4, showing the guide-pin in full lines in place. Figs. 8 and 9 arerespectively left and right hand end views of said detached sleeve, andFigs. 10 and 11 are views showing the head made from sheet metal.

The head A is preferably an integral body of approved size and shape,consisting of a central head-block a, with top and bottom plates a,forming side ears a provided with orifices a into which are secured, asby riveting, the extremities of pivot-pins A.

Between the ears a on the sides of the head A are placed the bodies ofjaws Band pivoted in place by the pins A, passing through orifices b insaid bodies, said jaws having forward of said pivot-pointsinwardly-curving arms I), with widened contact-faces 17 which may beroughened by approved filecuts to increase their grip or bite, and theymay be provided with registering V cuts or grooves 19 of approved depthsfor the better holdiugof the Wireorpin, and rearward of saidpivot-points rearwardly narrower and longer arms 19 so that anoutwardly-exerted pressure against the rear ends of the latter willbring the forward ends of the former together with increased force, andsaid rear ends on their inner faces may be provided with rounded ridgesor ribs b to receive the impact of said outward pressure with reducedfriction, while coiled springs b engaging in sockets in the forwardinner faces of the forward ends of the jaws and against the adjacentfaces of the central head-block a, serve to press said forward endsoutwardly and the rearward ends of said jaws inwardly.

Into the rearward face of the block at is rigidly secured, in anyimproved manner, the forward end of a handle or stem 0 of approveddimensions, and which handle maybe cylindrical in form, as shown, oritmayhave any other shape in cross-section, having a forward end smoothportion 0 and a rearward end knurled portion 0, with a rounded extremityc to rest in the hollow of the hand when the vise is applied to use,andthe smooth portion 0 for a prescribed distance fromits forward endrearward is provided in one side thereof with a longitudinal groove orrecess ciconstitu ting a guideway for the end of a pin yet to bedescribed, said handle or stem being provided with an axial bore oraperture 0 through its body for the passage of a wire therethrough whenso desired.

Onto the-smooth portion a of the handle or stem 0 is mounted a truncatedsleeve D, movable up and down thereon between the arms 1 b of the jawsB, with its wider end toward the upper or attached end of said handle orstem, its convex surface engaging against the rounded ridges or ribs bof said arms, wherebyadownward motion of the sleeve will expand therearward ends of the jaws and compress their forward ends, forming thedesired bite or grip upon the article to be held in place or secured tothe vise. The forward v end of the sleeve is cut away above and below toform end projections or fingers d to enter the space or opening betweenthe plates a, allowing the sleeve to pass up fully against thehead-block and the jaws toopen fully at the bite or grip ends, and thesleeve, adjacent to the upper cut-out, is provided with a push or pullblock (1, whereby to move it up and 1 down, as may be desired, while apin d passing through the block and sleeve, with its point engaging inthe groove 0 and abutting against its lower end practically at the pointas, serves to secure said blocks in place, guide the sleeve in itsupward and downward course, preventing it from turning and stopping itsfurther downward progress.

Instead of being made as hereinbefore shown and described the head maybe punched from suitable sheet metal, as shown in Fig. 10, comprisingthe rectangular por-I tion 0, having thecentral orifice 0, joining theend portions 0 and the side extensions 0 I having the orifices o withthe side extensions j folded over, as shown in Fig. 11, said centralportion through its orifice 0 being secured to the forward end of thehandle or stem, tak-; ing the place of the head-block a, beforementioned, and the folded-over portions 0 taking the places of the topand bottom plates a, also before mentioned, with the side extensions 0taking the places of the jawglivoting ears a likewise before mentioned,without changing the character of the'invention.

Now, the several parts hereinbefore described and occupying therespective posi-. tions illustrated in the drawings, the followingobservations will be noted: first, that the rounded lower end beingplaced in the hollow of a hand, with the head resting against thefingers thereof, the block d may be readilyi engaged by the thumb of thesame hand and the sleeve D moved up or down on the steni 0, therebyconstituting a one-hand operative tool; second, moving the sleeve 1)from the position illustrated in Fig. 2 to that illustrated in Fig. 1will compres the forward or bite ends of the jaws; third, that thesleeve being long and gradually sloping said compression will be gradualand easy; fourth, that the arms 5 being about twice the length of thearms b the bite ends of the jaws will be brought together with agreatly-increased force, and, fifth, that for these several reasons thehand-viseof the invention is simple in construction and yet a veryeffective tool.

Having now described the invention and ascertained and fully set forththe manner in which it is performed,what is considered new,

and desired to be secured by Letters Patent, 1s

I 1.. A hand-vise comprising a head-block having top and bottom plateswith side ears as shown, a handle with one end rigidly secured into saidblock and jaws pivoted between said ears, said jaws having forwardlyinwardly curving arms with contact-faces at the forward extremitiesthereof, and rearwardly longer arms with adjacent frictionribs at theirrearward ends, and a truncated sleeve movable up and down on said handlebetween said rearward ends with means provided to prevent its turning,substantially as described and for the purpose hereinbefore set forth.

2. A handvise comprising a head-block with side ears and a stem havingone end rigidly secured into said block, a pair of jaws pivoted betweensaid ears and lying in the ;plane of said stem, said jawshaving'forwardly inwardly curving arms with grip-faces at their forwardends and rearWardly-extended arms,'one on each s'ideof the stem, withtheir extremities adapted to receive the impact of an outward pressure,and a truncated sleeve mounted on said stem, movable up and downthereon, with means provided to prevent its turn'ing,and contacting withsaid extremities, whereby the downward motion, in one direction, of saidsleeve will impart said outward ipressure, substantially'as describedand for the purpose hereinbefore set forth. I In testimony whereof Iaffix my signature "in presence of two witnesses.

ENOS H. KREIDER. Witnesses:

DANL. I-I. HERB, EDW. R. HEITSHU.

